Check out the documentation [1]. In short, ActiveMQ 5.7 looks to be the last version that supports Java 5 (JDK 1.5) so you'll need to use a client from that version. I would expect later releases of the broker to be backwards compatible with older clients.
Aside from that, I recommend you move to a later version of Java. According to Wikipedia [2] public support and security updates for Java 1.5 ended in November 2009. Paid security updates for Oracle customers ended in April 2015. You're using a really old platform at this point which is both a support and security risk. Justin [1] https://activemq.apache.org/what-platforms-does-activemq-support [2] https://en.wikipedia.org/wiki/Java_version_history#J2SE_5.0 On Thu, Dec 12, 2019 at 9:53 AM JLhr <jose_hreicha...@gmx.es> wrote: > Hi, > > We have a SAP PI 7.1, with JAVA 1.5 and when uploading the latest driver > version of ActiveMQ, we get the following error: > > Error while starting channel: org/apache/activemq/ActiveMQConnectionFactory > has been compiled by a more recent version of the Java Runtime (class file > version 52.0), this version of the Java Runtime only recognizes class file > versions up to 49.0 > > @ ActiveMQ / Forum: Please, can you provide me with a driver version that > is > compatible with the JAVA version or some other solution? > > Thanks, Regards, > Jose > > > > -- > Sent from: > http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html > >
